Don′t sweat it: “Negative” fingermarks are developed on paper by the application of gold nanoparticles (gold circles) that are capped by a bifunctional ligand, and then silver precipitation. In this process, paper is the substrate and the fingermarks serve as a mask. This approach may contribute to the successful recovery of latent fingermarks by law enforcement agencies.
No takes yet. Share an insight, caveat, or question.
Jaber et al. (2012) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: